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Tuesday, January 13, 2009

You'll probably get the Remote IP Address of your users by using the server variable $_SERVER['REMOTE_ADDR']. However, if your users are being proxy servers or using dynamic IP address, you won't get the actual IP Address of your users using $_SERVER['REMOTE_ADDR'].

Probably you need the following code to help you to get the actual IP address of your users.

How does this get the actual IP?When servers send data to a client through a proxy, the protocol will still send the actual IP address through the environment variables in order for the proxy to be able to identify which client to send to.

You should use this abreast (side by side) with $_SERVER['REMOTE_ADDR']. This function returns $_SERVER['REMOTE_ADDR'] if there's no secondary IP address.

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